Proteomics

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Proteomic Analysis of Cerebrospinal Fluids from Chronic Fatigue Syndrome Patients with and without Co-existing Fibromyalgia

ABSTRACT: Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) and fibromyalgia have overlapping neurologic symptoms particularly disabling fatigue. This has given rise to the question whether they are distinct central nervous system (CNS) entities or is one an extension of the other. To investigate this, we used unbiased quantitative mass spectrometry-based proteomics to examine the most proximal fluid to the brain, cerebrospinal fluid (CSF). This was to ascertain if the proteome profile of one was the same or different from the other. We examined two separate groups of ME/CFS, one with (n=15) and one without (n=15) fibromyalgia. We quantified a total of 2,083 proteins using immunoaffinity depletion, tandem mass tag isobaric labeling and offline two-dimensional liquid chromatography coupled to tandem mass spectrometry, including 1,789 that were quantified in all the CSF samples. ANOVA analysis did not yield any proteins with an adjusted p-value < 0.05. This supports the notion that ME/CFS and fibromyalgia as currently defined are not distinct entities.

INSTRUMENT(S): Orbitrap Fusion Lumos

ORGANISM(S): Homo Sapiens (ncbitaxon:9606)

SUBMITTER: Steven E Schutzer  

PROVIDER: MSV000090685 | MassIVE | Wed Nov 09 17:18:00 GMT 2022

SECONDARY ACCESSION(S): PXD038078

REPOSITORIES: MassIVE

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Myalgic encephalomyelitis/chronic fatigue syndrome and fibromyalgia are indistinguishable by their cerebrospinal fluid proteomes.

Schutzer Steven E SE   Liu Tao T   Tsai Chia-Feng CF   Petyuk Vladislav A VA   Schepmoes Athena A AA   Wang Yi-Ting YT   Weitz Karl K KK   Bergquist Jonas J   Smith Richard D RD   Natelson Benjamin H BH  

Annals of medicine 20230918 1

<h4>Background</h4>Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) and fibromyalgia have overlapping neurologic symptoms particularly disabling fatigue. This has given rise to the question whether they are distinct central nervous system (CNS) entities or is one an extension of the other.<h4>Material and methods</h4>To investigate this, we used unbiased quantitative mass spectrometry-based proteomics to examine the most proximal fluid to the brain, cerebrospinal fluid (CSF). This was  ...[more]